LM2731XMFX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2731XMFX/NOPB is a current-mode boost converter from Texas Instruments, housed in a compact SOT-23-5 package. It operates at a fixed switching frequency of 600 kHz or 1.6 MHz and features an internal 22V rated FET switch. The device supports an input voltage range of 2.7V to 14V and provides an adjustable output voltage between 1.23V and 22V. It delivers up to 1.5A of output current with a typical quiescent current of 1mA. The component is designed for operation across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 22V internal FET switch within a minimal five-pin surface-mount footprint.
• Utilizes current-mode control architecture for stable regulation and simplified external compensation.
• Offers selectable switching frequencies to optimize the trade-off between efficiency and passive component size.
• Includes logic-level enable functionality for system power management and low-power shutdown modes.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered consumer electronics requiring step-up conversion
• LCD bias voltage generation circuits
• LED backlight driver power supplies
• USB-powered peripheral devices needing higher voltage rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific order matches the LM2731XMFX/NOPB designation, as suffixes indicate packaging variations such as cut tape or reel quantities. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected variant aligns with the required switching frequency configuration for your design constraints.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when board space is limited but moderate output current is required. The 22V internal switch rating suits applications where the output voltage does not exceed this limit. Compare against the LM27313 series if higher output voltages or different current capabilities are necessary for the target application.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2731 family of DC-DC converters, which focuses on high-density power solutions for portable devices. The LM2731XMFX/NOPB specifically represents the standard commercial grade version with lead-free packaging. It serves as a foundational solution for basic boost applications before moving to more specialized automotive or high-voltage variants.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2731XMF/NOPB is a direct functional substitute differing primarily in packaging quantity. For higher voltage requirements, consider the LM27313 series. Verify pin compatibility and thermal performance when substituting with other manufacturers' similar SOT-23 boost converters.